Bright-Palm, Soul Awakener and Conclave Sledge Captain are good +1/+1 counter support cards, which is technically true of the backup mechanic as a whole
Gisa and Geralf possess two synergistic abilities that each pair quite well with Zombie-based strategies whilst remaining unapologetically Dimir
Putting those two assumptions together, it is safe to conclude that the price of Blue Ugin would unlikely drop any lower than set foil Ugin, which is currently at $97, even in the scenario where Blue Ugin is reprinted as a judge foil, based on the merit that Blue Ugins are scarcer
Overall, these decks are an 8/10
Teferi's Protection While ultimately a defensive spell, if you want to talk about cards that are quite definitionally game changing, this is one of them